A NASTRAN model of a large flexible swing-wing bomber. Volume 3: NASTRAN model development-wing structure

The NASTRAN model plan for the wing structure was expanded in detail to generate the NASTRAN model for this substructure. The grid point coordinates were coded for each element. The material properties and sizing data for each element were specified. The wing substructure model was thoroughly checked out for continuity, connectivity, and constraints. This substructure was processed for structural influence coefficients (SIC) point loadings and the deflections were compared to those computed for the aircraft detail model. Finally, a demonstration and validation processing of this substructure was accomplished using the NASTRAN finite element program. The bulk data deck, stiffness matrices, and SIC output data were delivered

A NASTRAN model of a large flexible swing-wing bomber. Volume 5: NASTRAN model development-fairing structure

The NASTRAN model plan for the fairing structure was expanded in detail to generate the NASTRAN model of this substructure. The grid point coordinates, element definitions, material properties, and sizing data for each element were specified. The fairing model was thoroughly checked out for continuity, connectivity, and constraints. The substructure was processed for structural influence coefficients (SIC) point loadings to determine the deflection characteristics of the fairing model. Finally, a demonstration and validation processing of this substructure was accomplished using the NASTRAN finite element program. The bulk data deck, stiffness matrices, and SIC output data were delivered

Analytical design and performance studies of the nuclear light bulb engine

Analytical studies were conducted to investigate in detail the heat balance characteristics of the nuclear light bulb engine. Distributions of energy deposition to all engine components from the fission process, conduction and convection, and thermal radiation were considered. Where uncertainties in basic data or heat transfer characteristics were encountered, ranges of heat loads were calculated and reference values were selected. The influence of these heat loads on engine performance, space radiator requirements, and cooling sequence and cooling circuit designs was determined. The analyses resulted in revisions to the previously reported reference engine characteristics, principally in the heat loads to some engine components and in the cooling sequence. These revisions were incorporated in the engine dynamics digital computer simulation program. No significant changes occurred in the dynamic response of the engine to perturbations in fuel injection rate, reactivity or exhaust nozzle area

Study of proton radiation effects on solar vehicle electronic system

Radiation effects on electronic equipment of solar spacecraft - shielding requirement

The Two Hundred Mile Economic Zone and Scientific Research

Knowledge of the deep ocean floor; continental shelves and margins is basic to many present and future uses of the sea. Such uses include mineral extraction, navigation of surface and subsurface vehicles, construction of structures on the sea bottom and along the margin, and exploitation of living resources of the shelf and of the water column. Uses of the ocean are directly impinged upon by technological changes resulting from research efforts. Applied science is nowhere more visible than in current development of offshore petroleum sources, development of new fisheries and speculation over possibilities for wealth awaiting mankind on the sea floor. Trained scientists have become important to political decision-makers as a resource. As a result of this political calculus, oceanographers find themselves defending their freedom to conduct fundamental research in large portions of the world\u27s oceans and marginal seas

Dillon\u27s Rule Versus Home Rule: A Comprehensive, Comparative Review of the Impacts

There are two primary configurations of the American state-local relationship. The status quo configuration, pure Dillon\u27s Rule, is a top-down organizational structure in which the state, primarily through its legislature, exercises close-to-complete oversight over decision-making at the local level — in municipalities, counties, towns, etc. An alternative configuration may be brought about by the institution of home rule, a constitutionally or legislatively conferred devolution of powers to substate governments that allows, at least nominally, for greater autonomy at the local level. This study utilizes institutional theory and a systematic review of the current body of literature concerning the tangible impacts of differences in state-local power dynamics to comparatively assess pure Dillon\u27s Rule systems and home rule systems of state-local interaction. Through the utilization of OneSearch, an aggregate search engine, 518 independent search results relevant to the substantive impacts of these systems were gathered from the contemporary body of literature. After subjecting these 518 search results to screening based on predetermined selection criteria and an even more in-depth critical appraisal process, 60 sources were ultimately chosen to constitute the study\u27s literature sample. Eight themes were extracted from this literature sample, four of which point to differences between the systems in terms of their on-the- ground impacts. Home rule does appear to make governing institutions better equipped to respond to local voices and local problems: home rule localities\u27 budgets are more sensitive to emergent community needs, autonomy at the local level corresponds to more dramatic shifts in budgetary allocations based on electorally expressed wants, and local governments\u27 legal capacities under home rule do allow for a wider range of innovation on social policymaking at the local level. However, efficiency gains through home rule are suspect at best; home rule tends to engender more bureaucratic sprawl in service delivery, not less, and any local economic gains are more or less contingent on that locality being part of a metropolitan area. Thus, this systematic review\u27s results alter the conversation fundamentally, asserting that the question of home rule is not properly understood as one of efficiency, but as one of effectiveness in local representation

Analytical studies of nuclear light bulb engine radiant heat transfer and performance characteristics

Analytical model of nuclear light bulb engine radiant heat transfer and engine performance, dynamics and control, heat loads and shutdown characteristic

The Responsive Reading Teacher

This paper describes the ways in which a literacy educator attempted to shift her own and pre-service teachers’ mindsets towards the needs of 21st Century literacy learners by employing a pedagogy of discomfort. The focus of the disruption was on contesting normative practices and content while developing and refining novice teachers’ skills in questioning, listening, noticing, and responding to children, as well as explicit teaching and assessing reading for learning in primary school settings